Car-coupling.



.No. 830,714- PATB'N'E'ED SEPT. 11. 1906.

a. A. HERMANSON.

GAR COUPLING. APPLIUATIOII min APR. 2. mos.

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To all whom zlt'mlcty concern:

UNITED .sTATEs PATENT oF ioE.

GUSTAF A. HER-MANSION, or CHICAGO, ILLINOIS, ASSIGNOR To JAMES MUNTON,OEMAYWOOD, ILLINOIS.

' Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed April 2, 1906. Serial No. 309.250.

Be it known that I, GUsTAr A. HERMAN- SON, a citizen of the UnitedStates, residing in Chicago, in the county of Cook and'State ofIllinois, have invented a new and useful Improvement in Car-Couplers, ofwhich the following is a specification.

My invention relates to improvements in car-couplers of the MasterCar-Builders type having a forked draw-head, pivoted knuckle, andvertically-movable lock, and more particularly to improvements indevices for automatically throwing the knuckle open when the lock islifted to the required extent.

In knuckle-throwers heretofore in use considerable difliculty isexperienced in practical operation owing to the fact that the verticalmovement of the lock is necessarily quite limited in extent, while thehorizontallyswinging movement of the knuckle-tail is necessarilyconsiderable in extent or through a considerable arc, so that theknucklethrower necessarily operates at a disadvantageous leveragethrough all or a greater portion of the knuckle-opening movement, thuscausing the knuckle to be opened with difficulty, especially when themovement of the knuckle is obstructed by sand or cinders or otherthings.

The object of my invention is to provide a car-coupler with aknuckle-thrower of a simple, eflicient, and durable construction, ofwhich the knuckle may be readily and conveniently opened without unduestrain.

My invention consists in the means I employ to practically accomplishthis resultthat is to say, it consists, in connection with the draw-headof the coupler, of aknuckle furnished with a plurality of cams orinclines adapted to be engaged by a knuckle-thrower and aknuckle-thrower having a plurality of knuckle-throwing arms one inadvance of the other and adapted to engage one after the other theknuckle-throwing cams or inclines on the inner arm or tail'of theknuckle, the knuckle-thrower also having an op eratingarm engaged by thelook when the lock is raised.

My invention also consists in the novel construction of parts anddevices and in the novel combinations of parts and devices herein shownand described.

In the accompanying drawings, forming a part of this specification,Figure 1 is avertical I longitudinal section of a carcoupler embodyingmy invention. Fig. 2 is a similar view showing the lock'partiallyraised. Fig. 3 is a horizontal section on the broken line 3 3 of Fig. 1.Fig. 4 is a detail horizontal section on the line 4 4 of Fig. 1 with theknuckle and lock removed. Fig. 5 is a section on line 5 5 of Fig. 3.Fig. 6 is an enlarged detail plan view of the knuckle-thrower. Fig. 7 isa section online 7 7 of Fig. 6. Fig. 8 is a detail bottom view of theknuckle, and Fig. 9 is a detail section on line 9 9 of Fig. 5.

In the drawings, A represents the drawhead of the coupler, having thecustomary pivotarm a and guard-arm a.

B is the knuckle, having the customary front arm or nose I) and rear armor tail 6.

C is the liftingdever, by which the lock D is raised, the same beingconnected to the look by a clevis O. The lock D is furnished with alock-set ledge or shoulder d, adapted to engage a lock-set ledge orshoulder a on the floor of the draw-head and to hold the lock inposition for uncoupling. The look also has a lock-set ledge adapted toengage the upper face of the rear arm or tail of the knuckle, and

. thus set or hold the lock in position for uncoupling. The lock D isalso provided near its lower end with a foot or projection (1, adaptedto engage the operating-arm f of the knuckle-thrower F, when the knuckleis raised to the required extent.

The knuckle-thrower F is mounted in the floor of the draw-head and insuitable recessesor bearings a a, which receive the shaft portionf ofthe knuckle-thrower, and thus permit it to have a rocking movement whenits operating-arm f is engaged by the foot or projection d on the lockD. The knuckle-thrower F has two knuckle-throwing arms f 2 f the formerbeing in advance of the other or adapted to engage the tail of theknuckle in advance of the other and also adapted to engage it fartherfrom the radial pivot-pin G of the knuckle, so as to operate upon theknuckle with an increased leverage. The tail 5 of the knuckle isprovided with two cams or inclines, one, 6 engaged by theknuckle-throwing arm f and the other, b engaged by the knuckle-throwingarm f After the initial opening movement of the knuckle has beenimparted to it by the operating-arm f which engages the tail of theknuckle at a considerable distance from the Too pivot of the knuckle, soas to start the opening movement of the knuckle with consider"- ablepurchase or leverage the opening movement may be easily continued 'tothe desired or required extent by the second 0 eratihgarm f 3 of theknuckle-thrower, whic engages the tail of the knuckle nearer to itspivot center, and is thus adapted to impart to it an increased extent ofmovement, as after the knuckle has once been started in its openingmovement the movement can then ordinarily be continued Without greatforce As in my invention the knuckle thrower is mounted on the bottomweb orfloor of the draw-head, it is entirely out of the way and notliable to be injured or broken by sudden jamming of the knuckle into itsclosed position.

I claim- 1. In a car-coupler, the combination with a draw-head, of aknuckle, apivot for the knuckle, a lock, and a knuckle-thrower furnishedwith a plurality of knuckle-throwing arms,v one in advance of the other,and provided with an operating-arm, the lock having v a projectionengaging said operating-arm of the knuckle-thrower, substantially asspecified.

2. In a car-coupler, the combination with a draw-head, of a pivotedknuckle, avertically-movable locking-pin, and a rocking knuckle-throwermounted in the: floorof the draw-head, the knuckle having two inclinesffor engagement with arms on the knucklethrower, the lock having an armfor engage- 3 5 ment with the operating-arm on the knucklethrower, andthe knuckle-thrower being provided With an operating-arm and with twoknuckle-throwing arms arranged onein advance of the other for engagementwith the inclines on the knuckle, substantially as specified. V GUSTAFA. HERMAN SON.

' Witnesses EDMUND ADOOOK,

M. MUNDAY.

